FORM THREE GEOGRAPHY NOTES

4 principles of prismatic compass surveying

Prismatic compass surveying is the method of surveying in which the direction of surveying lines and angular measurements are determined with a magnetic compass and the length of surveying lines are measured with a tape or chain. The following are principles of prismatic compass surveying Make sure that there is no magnetic materials to avoid …

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4 Disadvantages of using prismatic compass surveying

4 Disadvantages of using prismatic compass surveying

Prismatic compass surveying is the method of surveying in which the direction of surveying lines and angular measurements are determined with a magnetic compass and the length of surveying lines are measured with a tape or chain. The following are disadvantages/demerits of using prismatic compass surveying can not be conducted in areas known to have …

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Meaning of legend in map reading

Most maps use symbols, colors, shadings, or other devices to represent features or the amount, degree, or proportion of some quantity. Some symbols are self-explanatory, but it is usually necessary to include a legend box in a corner of the map to explain the symbolization. The map legend is the box below the map which …

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